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New drone photos show killer whales' beautiful choreography

Scientists from the US government’s National Oceanic and Atmospheric Administration (NOAA), working with a team from the Vancouver Aquarium, have for the first time used drones to photograph killer whales—and the results are stunning.<p>The remote-controlled hexacopter, mounted with a high-resolution …

Killer Whales

Selfies from outer space: Self-portraits by astronauts and robots far from Earth

Dark matter may have been detected – streaming from the sun’s core

An unusual signal picked up by a European space observatory could be the first direct detection of dark matter particles, astronomers say.<p>The findings are tentative and could take several years to check, but if confirmed they would represent a dramatic advance in scientists’ understanding of the …

Why We Will Never Build a Nuclear Fusion Reactor As Good As The Sun

Combine two hydrogen atoms with one oxygen and you get water, the catalyst for life. But combine four hydrogen atoms and you get a burst of energy that can destroy entire islands and did on Nov. 1, 1952. That day the US tested the first hydrogen bomb on the now-nonexistent Pacific island, Elugelab. …

Energy